forked from: forked from: flash on 2009-7-2

by gencha 28 Oct 2009

Embed

/**
 * Copyright gencha ( http://wonderfl.net/user/gencha )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/frJy
 */

// forked from ep91ckok's forked from: flash on 2009-7-2
package {
    import flash.display.Sprite;
    import flash.filters.BlurFilter;
    import frocessing.display.*;
    import flash.geom.*; 
    import flash.text.*;
    public class Main3 extends F5MovieClip2DBmp{
        private var p:Point = new Point();
        private var v:Point = new Point();
        private var a:Point = new Point();
        private var pn:Point = new Point();
        private var vn:Point = new Point();
        private var c:uint = 0;
        private var blur:BlurFilter = new BlurFilter( 1.05, 1.05 );
        
        public function setup():void {
            
            p.x = stage.width/2;
            p.y = stage.height/2;
            pn.x = p.x;
            pn.y = p.y;
            
		background( 0 );
        }
        public function draw():void {
			for (var i:int = 0; i < 1000; ++i )
				draw_();
			bitmapData.applyFilter(bitmapData, bitmapData.rect, new Point(0,0), blur);
		}
        public function draw_():void {
            v.x = vn.x;
            v.y = vn.y;
            p.x = pn.x;
            p.y = pn.y;
            
            var n:Number = Math.random(); 
            var t:Number = Math.random()*2*Math.PI;
            a.x = n*Math.cos(t);
            a.y = n*Math.sin(t);
            vn.x += a.x - v.x*0.05;
            vn.y += a.y - v.y*0.05;
            pn.x += v.x;
            pn.y += v.y;
            
            var W:int = stage.width;
            var H:int = stage.height;
            while(p.x < 0) p.x += W;
            while(p.x >= W) p.x -= W;
            while(p.y < 0) p.y += H;
            while(p.y >= H) p.y -= H;
            
            var color:int = 255-Math.abs( ( p.x - W / 2 ) / W * 512 );
            color = Math.max( 0, color-Math.abs( ( p.y - H / 2 ) / H * 512 ) );
            fill( color, color * 0.5, color * 0.7, 255 );
            circle( p.x, p.y, Math.sin( ++c / 1000 ) * 20.0 );
        }
    }
}